Research on Ottun Family

Among my ancestors, Willem SMETS, ° Vechmaal (Belgium), May 2, 1873 (son of Nicolas and Maria Catharina FRANçOIS), + Custer County, Nebraska, 1924, married in Custer County, Nebraska, ca 1903, Guro OTTUN, ° Minnesota, December 31, 1883. The parents of Guro OTTUN were born in Norway, the father Nels J. OTTUN, in Luster, Sogn Og Fjordane, February 24, 1843, + Custer County, Nebraska, October 12, 1905, second marriage, ca 1878, Oline LOFTNESS, ° Norway, August 20, 1856, + Custer County, Nebraska, January 15, 1933; they married however after they left for the States. Nels J. OTTUN married already a first time, ca 1861, Eloise MUNKHAUGEN, + Iowa County, Minnesota, October 21, 1877. Nels and Eloise married after they left for the States. I'm looking for more information on these people. Thanking in advance for any help you can give me.